Lock-nut.



M. HAUGHEY. LOCK NUT.

APPLICATION FILED JUNE 13, 1911.

1,085,041 Patented Jan. 20, 1914.

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STAES PATENT MICHAEL HAUGHEY, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE HALF TQ MICHAEL J.- CULLEN, OF ST. LOUIS, MISSOURI.

LOCK-NUT.-

Application filed June 13, 1911.

To all whom it may concern:

Be it known that I, IVIIGHAEL I-IAUGHEY, a citizen of the United States, residing at St. Louis, State of Missouri, have invented new and useful Improvements in Lock- Nuts, of which the following is a specification.

This invention relates to improvements in locking devices for bolts and nuts, and the primary object of the invention is to produce a device of this class which is of an eX- tremely simple construction, which may be readily applied and which will perform the functions for which it is intended with ease and with accuracy.

lVith the above object in View, and others which will appear as the nature of the invention progresses, the improvement resides in the novel construction and arrangement of parts hereinafter fully described and claimed.

In the drawings, accompanying this specification, there has been illustrated a simple and preferred device constructed in accordance with the present invention, and in which drawings,

Figure 1 is an end view of the improvement showing the same connected with a nut and engaging a bolt. Fig. 2 is a side elevation of the same. Fig. 3 is a view showing the improvement engaging a nut. Fig. 4 is av perspective view of the improved lock.

In the drawings, and referring particularly to Fig. 1 thereof, the numeral 1 designates an ordinary bolt. This bolt 1 has its threaded portion formed with longitudinally extending channels 2, the same interrupting the threads of the bolt. The nut for the bolt is designated by the numeral 3. Pivotally secured, as at 6, to the outer face of the said nut 3, is a pair of flat locking members 4 and 5 respectively. These members are curved inwardly to their pivoted end, and the arms of the said members have their inner edges provided with inturned portions which have their extremities bent to provide dogs 7 and 8. The bent or upturned portions of the dogs 7 and 8 are inclined in opposite directions to engage with the shoulders provided by the angular walls of the channels 2 of the bolt, and the said bent portions also provide means whereby the memberst and 5 may be slid away from the bolt. The numeral 10 designates a wire Specification of Letters Patent.

Patented Jan. 2%,1914.

Serial No. 632,871.

spring member which is centrally coiled, as at 9, around the pivot 6 and which is provided with opposlt-ely curved arms 11, the ends of which being bent angularly of the members 1 and 5 to provide the said arms with U-shaped terminals which are adapted to engage with the opposite faces of the arms of the interlocking members 4: and 5, and which are disposed directly opposite the dogs or lugs 7 and 8.

In Fig. 3 I have illustrated the device in applied position upon a nut. In this in stance, the perimeter of the nut, designated by the numeral 12, is serrated as at 13, and the locking members 14: and 15 have their inner edges inturned and bent inwardly to provide lugs or dogs, and which have their ends angular and bent outwardly, as at 16 and 17. The dogs are adapted to engage the serrated perimeter of the nut upon the opposite sides thereof. The spring is in this instance interposed between the locking members 14 and 15 at their pivotal connection, the convolutions of the said springs engaging the pivot 18 and the arms of the spring being bent in opposite directions at their points of contact with the outer edges of the arms of the members 14: and 15 adjacent to the dogs.

From the above description, taken in connection with the accompanying drawings, it will be noted that the device is extremely simple, can be cheaply manufactured, can be applied to any surface, and will efiectively prevent the rotation of a nut or bolt against any degree of vibration of the members to which the nut or bolt is connected.

It will be noted that the arms of the lock extend a suitable distance below the dogs provided thereon, and whereby the said arms may be gripped and swung upon their pivots to disengage the dogs from the channels or serrations of the nut or the bolt.

Having thus fully described the said invention, what I claim is A look for nuts and bolts which are provided with peripheral grooves or serrations, comprising two fiat members which are curved inwardly at one of their ends and which have their said curved portions pivotally connected, the inner edges of the said members having inturned portions provided with dogs which are adapted to engage within the grooves or depressions provided In testimony whereof I afiix my signature in presence of two wltnesses.

MICHAEL HAUGHEY.

on the opposite sides of the periphery of the nut or bolt, a Wire spring having a centrally coiled portion Which is connected with the pivot member of the locking member, the said spring having oppositely curved arms having their extremities provided With angularly arranged U-shaped terminals Which engage With the outer edges of the locking members diametrically opposite the in- WVitnesses:

JAMES T. BRENNAN, MICHAEL CAMPBELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. G. 

